excel操作http://www.python-excel.org/
连接Mysql数据库http://sourceforge.net/projects/mysql-python/files/mysql-python/
串口通信http://pypi.python.org/pypi/pyserial
ocrhttp://code.google.com/p/pytesser/downloads/detail?name=pytesser_v0.0.1.zip&can=2&q=
PIL http://www.pythonware.com/products/pil/
